How to Cite a Historical Record in Your Family Research

Understanding the Question

When you find a document that supports a family connection—whether it’s a letter, a census entry, a military service record, or an architectural drawing—you need a citation that is both findable and verifiable. A findable citation lets another researcher locate the exact record you used; a verifiable citation lets that researcher confirm that you saw what you say you saw. It is not enough to say “National Archives” or “an online database.” The National Archives and Records Administration (NARA) publishes a pamphlet that outlines the exact elements that should be included in a citation for every type of archival record. The guidelines are found in Citing Records in the National Archives of the United States (NARA, 2010) and are the standard against which most genealogists judge archival citations.

Why a Complete Citation Matters

There are two key reasons to use a full citation:

• Reproducibility – If you want to confirm your source or let others build on your work, they must be able to locate the exact page, microfilm fiche, or image number you used.
• Credibility – A detailed citation signals that you have consulted the primary source and not just a summary or a transcription.

What Is a Historical Record?

In archival terms, a historical record is any item that has survived to the present and was produced by a public or private entity. There are four main categories of records that genealogists use:

• Textual records – letters, reports, official forms, transcriptions.
• Microform records – microfilm, microfiche, or microfiche copies of newspapers and other documents.
• Non‑textual records – photographs, maps, motion pictures, architectural drawings.
• Electronic records – digitized documents, online databases, digitized images that replace the original.

The Core Elements of a Citation

The NARA pamphlet lists the following elements as the minimum required for a citation to a textual record. Most other record types use the same core elements, sometimes with additional details such as image number or microfilm fiche number.

1. Record Item – The specific document or page. For a letter, include the sender, recipient, and date. For a census entry, include the enumeration district and page number.
2. File Unit – The folder, jacket, or bound volume that contains the record. If the record is on microfilm, this is the roll or fiche number.
3. Series – A grouping of related records, often organized by subject or function.
4. Subgroup – A further subdivision of the series, usually by date or geography.
5. Record Group – The major archival unit that holds the series, e.g., “Records of the Department of Justice, Record Group 60.”
6. Repository – The physical or virtual location where the record is kept, such as “National Archives Building, Washington, DC” or “National Archives at College Park.”
7. Date of the Record – The date the record was created, not the date it was published online.
8. Online Access Details (if applicable) – URL, accession number, or a stable identifier that points to the digital copy.

For non‑textual records, you may also need to note the image number, plate number, or the specific portion of a map. For microfilm, include the fiche number and the microfilm roll identifier.

Putting It All Together: A Citation Template

Here is a reusable template you can adapt to any record type. Replace the placeholder text in brackets with the exact information from the finding aid or index.

[Record Item] – [Date]
[File Unit] (if applicable), [Series]
[Subgroup]
[Record Group]
[Repository]
[Online Access (URL or accession number)]

Example (illustrative only):

Letter from John Smith to Mary Smith, 12 March 1875
Vol. A, 1874–1876, p. 45
Personal Correspondence
Smith Family Correspondence
Record Group 70
National Archives Building, Washington, DC
https://catalog.archives.gov/id/1234567

Note that the example does not use any specific record from the NARA collection; it only demonstrates how the elements fit together. In your own work, be sure to pull the exact wording from the finding aid or the index entry for the record.

Practical Procedure for Citing a Record

1. Identify the record type. Look at the finding aid or index to see if the record is textual, microfilm, non‑textual, or electronic.
2. Gather the core elements. Use the finding aid to locate the record item title, file unit, series, subgroup, record group, and repository. Write them down exactly as they appear.
3. Note the date of creation. This is usually on the record itself or in the finding aid.
4. Determine online access details. If you accessed a digitized version, record the URL, accession number, or any stable identifier. If you accessed a physical copy, omit this step.
5. Assemble the citation. Plug the gathered information into the template above. Use the same punctuation and formatting as the finding aid to avoid confusion.
6. Double‑check for missing elements. A citation missing the record group, for example, can be ambiguous if the series title is shared across multiple record groups.
7. Save the citation in a research notebook. Keep the citation next to the transcription or the note that explains why the record is relevant.

Common Pitfalls and How to Avoid Them

• Using only the record group. If you cite only the record group, you may point to a box of records that contains many unrelated items. Always include the series or file unit.
• Confusing index entries with the original record. Indexes are summaries created later and may contain errors. Cite the original record, not the index.
• Relying solely on an online database citation. The database may have changed its URL or moved the record. Include the NARA record group and other archival details.
• Omitting the date of the record. The publication or upload date can be misleading; the record’s creation date is what matters for genealogical relevance.
• Assuming a stable URL will never change. Even digital repositories can reorganize URLs. Adding the record group and repository provides a backup if the link breaks.

What Remains Uncertain

Sometimes the finding aid will be incomplete, or the record may be lost, damaged, or not yet digitized. In those cases, you may need to request a physical visit or a reproduction from the archive. If a record group is shared across multiple series, it may not be possible to pinpoint the exact file unit without an on‑site search. These uncertainties are normal; the key is to document what you do know and to be transparent about gaps.

Next Research Step

Once you have a complete citation, use it to:

• Verify the record. If you have access to a digital copy, compare the transcription you used with the original page to confirm accuracy.
• Share your citation. Include it in any family history publication, blog post, or research repository so that others can trace your evidence.
• Cross‑check related records. Use the citation to locate related items in the same series or subgroup, such as other letters in the same correspondence series.

For more guidance on handling microfilm or non‑textual records, consult the NARA pamphlet’s sections on microform and non‑textual citations. If you encounter a record that is only available as a digitized image, follow the guidelines for citing electronic records in the pamphlet.

Resources for Further Reading

• Citing Records in the National Archives of the United States (NARA, 2010)
• National Archives Finding Aids – catalog.archives.gov
• Microfilm and Microfiche – archives.gov/research/microfilm